He was accused of pocketing P183.793 million after diverting his Priority Development Assistance Fund to allegedly "non-existent" and "unaccredited" non-government organizations that failed to deliver the assistance to beneficiaries from 2004 to 2012.

During Monday's hearing, Estrada lawyer Paul Mar Arias continued his cross-examination on prosecution witness Rodante Berou, chief of the special intelligence services at the National Bureau of Investigation.

Arias said some documents presented by the prosecution, including Estrada's supposed letters of endorsement for projects, were not acknowledged by the addressees.

Berou, for his part, said the NBI relied on the documents sent by the Commission on Audit, which also probed the pork barrel scam.

Due to lack of time, Berou is set to appear again on November 20 for the continuation of his cross-examination.